Clarify that only the robot must fit within a 500mm cube

Change-Id: Ifa719e630fbae7fbea3ee38eb2cba793b70e524d
Change the "place token in/on robot" rule

The in/on rule was ambiguous and didn't do what we wanted it to - several teams'
lifting/grabbing mechanisms would not benefit from this rule since they lift the
box without supporting it from below.
Revert "Change the "place token in/on robot" rule"

It should not have gone in without review

This reverts commit 6d1b0f73a585cccba5edd9a1208d1fc910baf538.
Delay the date by which teams must request to keep their kits.

This was discussed on the list, and a rules change requested.

Change-Id: Icacf92e9c2697661f70cad987a8545ad3f908aae
Add safety regulations to rulebook, as appendix.

This contains the slightly reformatted procedure from:

https://www.studentrobotics.org/trac/wiki/2012/SafetyInspection

Change-Id: I372748b31b5374fb9a256cabe6fe35f49922e525
Add safety-regs.tex to rulebook.pdf's prereq's

rulebook.pdf should be rebuilt when this tex file is new
Fix grammar and spelling in safety-regs

A couple of items had grammar/spelling issues.  The second of these is
also truncated for simplicity.
Fixed a bug with tokens per zone

It was miscounted and included an overlap. Urgent fix.
Upped revision number and added comment to log

I had forgot to do this in the first patch. Fine to do it in another
patch as it has not been published yet. Also includes more verbose
description on the change.

Change-Id: Ie81df14c132bba1a89d6b52567691b3c35237c9e
Whitespace, realignment.

Change-Id: I44a4f305ceea067c9f09d026e3d53436e2e3caea